Description

Unrestricted upload of a file with dangerous type in Kibana can lead to arbitrary JavaScript execution in a victim’s browser (XSS) via crafted HTML and JavaScript files.

The attacker must have access to the Synthetics app AND/OR have access to write to the synthetics indices.

Classification

CVE ID: CVE-2024-11390

CVSS Base Severity: MEDIUM

CVSS Base Score: 5.4

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected Products

Vendor: Elastic

Product: Kibana

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.03% (probability of being exploited)

EPSS Percentile: 7.46% (scored less or equal to compared to others)

EPSS Date: 2025-05-30 (when was this score calculated)

Stakeholder-Specific Vulnerability Categorization (SSVC)

SSVC Exploitation: none

SSVC Technical Impact: partial

SSVC Automatable: false

References

https://nvd.nist.gov/vuln/detail/CVE-2024-11390
https://discuss.elastic.co/t/kibana-7-17-24-and-8-12-0-security-update-esa-2024-20/377712

Timeline